They are 5, 7, 9 and 11.
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All nonzero numbers have factors. Some factors are odd numbers. 3 is an odd factor of 12.
The prime numbers between 1-12 are 2, 3, 5, 7, and 11. A prime number is a natural number greater than 1 that cannot be formed by multiplying two smaller natural numbers. In this range, 2 is the only even prime number, and the rest are odd. Prime numbers have exactly two factors: 1 and the number itself.
25
Any odd number multiply with itself, or any other odd number results in odd square number.
An odd number can't have 12 as a factor. 528 does have 12 as a factor.